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Finding the Fourth Proportional to 95,428.80, 131,703.84 and 57,723.84

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Solution

The fourth proportional to 95,428.80, 131,703.84 and 57,723.84 is: 79,666.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,428.80 : 131,703.84 = 57,723.84 : x
  2. Step 2: Convert to fraction form
    95,428.80/131,703.84 = 57,723.84/x
  3. Step 3: Cross multiply
    95,428.80x = 131,703.84 × 57,723.84
  4. Step 4: Simplify right side
    95,428.80x = 7,602,451,387.55
  5. Step 5: Solve for x
    x = 7,602,451,387.55/95,428.80
  6. Step 6: Final answer
    x = 79,666.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.